Mathematics, 30.03.2020 05:56 samangelzrose3576

Exercise 1 - fill in the missing words in the sentences below.

1. The mass of the reactants (starting chemicals) is E- to the mass of the products (the chemicals that are made).

2. The products have different P- to the reactants.

3. During a chemical reaction Heat is either taken in or given out.

4. A chemical change is difficult to R - (go backwards).

Exercise 1 - fill in the missing words in the sentences below.1. The mass of the reactants (starting

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Exercise 1 - fill in the missing words in the sentences below.

1. The mass of the reactan...

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